Feature:1. We embed a blank chip into the smart carbon fiber ring. Therefore, you don't have to worry about not being able to add it to your car.2. The key ring is convenient to use when you can't use your phone, the battery is dead, or others need to use it temporarily.3. To lock or unlock, click the key ring in the center of the pillar on the right side of the driver's window.4. The key ring is lightweight, waterproof, easy to carry, take it with you in your hand to unlock. And can easily enter and exit in any situation.5. Carefully selected carbon fiber material, which makes it have a smooth and clear texture.Specification:Item Type: Smart Key RingMaterial: Carbon FiberColor: BlackInner Diameter:Approx. NO.6: 16.5mm/0.65in, NO.7: 17.3mm/0.68in, NO.8: 18.1mm/0.71in, NO.9: 18.9mm/0.74in, NO.10: 19.8mm/0.78in, NO.11: 20.6mm/0.81in, NO.12: 21.4mm/0.84inFitment:Fits for Tesla Model 3 All YearsFits for Tesla Model Y All YearsFits for Tesla Model X 2021-2023Fits for Tesla Model S 2021-2023How to Use:1. Organize and clear the central control sensor area 2. Click the car shape button at the bottom left of the central control screen 3. Click the middle lock button 4. Click the \"+\" to the right of the key 5. Place our smart ring on the central control induction area 6. When the screen pops up \"Induction of existing key card to authorize pairing\", place the original car key/card in the central control induction area for authorization and wait for completion..Package List:1 x Smart King Ring1 x Packaging BoxNote:Avoid direct contact with products with high magnetic fields or being in an environment with high magnetic fields during product use.